Honey
322e2882ca
Just http://<pi-ip> now instead of http://<pi-ip>:8080. Safe since the systemd service already runs as root (needed for GPIO/SPI access anyway), so binding the privileged port isn't a new requirement. Local --mock dev stays on 8080 (README/main.py default unchanged) -- that's normally run without root, and port 80 needs it. install.sh now does enable + restart instead of enable --now, so re-running it after a unit-file change (like this one) actually applies on an already-installed instance, not just a fresh install.
128 lines
4.2 KiB
Bash
Executable File
128 lines
4.2 KiB
Bash
Executable File
#!/bin/bash
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# Installs Paperwall on this machine, in place. Standalone -- doesn't require
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# InkyPi to be installed. If InkyPi (or anything else) happens to already be
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# running against the same panel, this stops it, since two processes can't
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# both drive the same SPI display.
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#
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# Run this ON the Pi, from wherever you copied the project folder to (e.g.
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# via SFTP): `sudo bash install.sh`
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set -euo pipefail
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# Resolve the real directory this script lives in, even through symlinks.
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SOURCE="${BASH_SOURCE[0]}"
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while [ -h "$SOURCE" ]; do
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DIR=$(cd -P "$(dirname "$SOURCE")" >/dev/null 2>&1 && pwd)
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SOURCE=$(readlink "$SOURCE")
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[[ $SOURCE != /* ]] && SOURCE="$DIR/$SOURCE"
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done
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APP_DIR=$(cd -P "$(dirname "$SOURCE")" >/dev/null 2>&1 && pwd)
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VENV_DIR="$APP_DIR/venv"
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SERVICE_NAME="paperwall.service"
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SERVICE_TARGET="/etc/systemd/system/$SERVICE_NAME"
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CONFIG_TXT="/boot/firmware/config.txt"
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[ -f "$CONFIG_TXT" ] || CONFIG_TXT="/boot/config.txt"
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step() { echo -e "\n==> $1"; }
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check_permissions() {
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if [ "$EUID" -ne 0 ]; then
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echo "ERROR: run with sudo (sudo bash install.sh)" >&2
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exit 1
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fi
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}
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install_system_dependencies() {
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step "Installing system dependencies (python3-venv, lgpio/spidev build deps)"
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apt-get update -qq
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apt-get install -y -qq python3-venv python3-pip python3-dev liblgpio-dev swig
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}
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enable_spi_i2c() {
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step "Enabling SPI/I2C in $CONFIG_TXT"
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if [ ! -f "$CONFIG_TXT" ]; then
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echo " WARNING: $CONFIG_TXT not found -- enable SPI/I2C manually for your platform." >&2
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return
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fi
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if grep -qE '^\s*dtparam=spi=on' "$CONFIG_TXT"; then
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echo " SPI already enabled."
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else
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sed -i -E 's/^#?\s*dtparam=spi=.*/dtparam=spi=on/' "$CONFIG_TXT"
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grep -qE '^\s*dtparam=spi=on' "$CONFIG_TXT" || echo "dtparam=spi=on" >> "$CONFIG_TXT"
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echo " SPI enabled (reboot required)."
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fi
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# This panel uses both SPI chip-select lines.
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if ! grep -qE '^\s*dtoverlay=spi0-2cs' "$CONFIG_TXT"; then
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echo "dtoverlay=spi0-2cs" >> "$CONFIG_TXT"
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echo " Added dtoverlay=spi0-2cs (reboot required)."
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fi
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if grep -qE '^\s*dtparam=i2c_arm=on' "$CONFIG_TXT"; then
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echo " I2C already enabled."
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else
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sed -i -E 's/^#?\s*dtparam=i2c_arm=.*/dtparam=i2c_arm=on/' "$CONFIG_TXT"
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grep -qE '^\s*dtparam=i2c_arm=on' "$CONFIG_TXT" || echo "dtparam=i2c_arm=on" >> "$CONFIG_TXT"
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echo " I2C enabled (reboot required)."
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fi
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}
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create_venv() {
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step "Creating Python virtual environment at $VENV_DIR"
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python3 -m venv "$VENV_DIR"
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"$VENV_DIR/bin/python" -m pip install --upgrade -q pip
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"$VENV_DIR/bin/python" -m pip install -q -r "$APP_DIR/requirements.txt" -r "$APP_DIR/requirements-pi.txt"
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echo " done."
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}
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stop_conflicting_services() {
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step "Checking for other software already driving this panel"
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if systemctl list-unit-files inkypi.service >/dev/null 2>&1 && systemctl is-active --quiet inkypi.service; then
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systemctl disable --now inkypi.service
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echo " Stopped and disabled inkypi.service (left installed, not removed)."
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else
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echo " Nothing else running against the panel."
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fi
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}
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install_service() {
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step "Installing $SERVICE_NAME"
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sed \
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-e "s#{{APP_DIR}}#$APP_DIR#g" \
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-e "s#{{PYTHON}}#$VENV_DIR/bin/python3#g" \
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"$APP_DIR/paperwall.service.template" > "$SERVICE_TARGET"
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systemctl daemon-reload
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systemctl enable "$SERVICE_NAME"
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# restart (not just enable --now) so re-running this after a unit file
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# change -- e.g. the port -- actually picks it up on an already-running
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# install, not just on a fresh one.
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systemctl restart "$SERVICE_NAME"
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echo " installed and started."
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}
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show_status() {
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step "Status"
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sleep 2
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systemctl status "$SERVICE_NAME" --no-pager -l | head -15 || true
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ip_address=$(hostname -I | awk '{print $1}')
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echo
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echo "Web UI: http://$ip_address (or http://$(hostname).local)"
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echo "Logs: journalctl -u $SERVICE_NAME -f"
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echo "Remove: sudo bash uninstall.sh"
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if grep -qE '^\s*dtoverlay=spi0-2cs' "$CONFIG_TXT" 2>/dev/null; then
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echo
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echo "NOTE: if SPI/I2C were just newly enabled above, reboot for that to take effect:"
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echo " sudo reboot"
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fi
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}
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check_permissions
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install_system_dependencies
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enable_spi_i2c
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create_venv
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stop_conflicting_services
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install_service
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show_status
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